This is my own opinion now, so keep that in mind. I own an ALD-1 Deluxe and have also thought about the upgrade but I don't think it would be WORTH it (to the hi-fi community). If Steve would allow an audition to an upgraded unit it would help in the decision making.
If you are the original owner you are aware that your piece is worth way less than half of what you paid for it. If you got it used, you probably got a steal (again, my opinion). Until some magazine gives the upgrade a rave review which would increase it's value and desirablity, therefore supporting the extra expenditure, I'd suggest dumping it if you really don't like it. Because if you get the expensive upgrade and still don't like it you'll really be screwed. There are a lot of well regarded preamps available for less money than the original ALD price + upgrade costs.
If you are the original owner you are aware that your piece is worth way less than half of what you paid for it. If you got it used, you probably got a steal (again, my opinion). Until some magazine gives the upgrade a rave review which would increase it's value and desirablity, therefore supporting the extra expenditure, I'd suggest dumping it if you really don't like it. Because if you get the expensive upgrade and still don't like it you'll really be screwed. There are a lot of well regarded preamps available for less money than the original ALD price + upgrade costs.